Gurobi 5.0.1 (linux64) logging started Sat Nov 17 00:55:53 2012 Optimize a model with 46829 rows, 44310 columns and 183748 nonzeros Presolve removed 422 rows and 2 columns Presolve time: 1.18s Presolved: 46617 rows, 44308 columns, 226356 nonzeros Variable types: 0 continuous, 44308 integer (44308 binary) Found heuristic solution: objective 210.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 27980 3.0000840e+00 3.006250e+01 0.000000e+00 5s 33711 3.0000859e+00 1.181538e+00 0.000000e+00 10s 33884 3.0000000e+00 0.000000e+00 0.000000e+00 10s Root relaxation: objective 3.000000e+00, 33884 iterations, 10.19 seconds Total elapsed time = 28.40s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 3.0000000 3.00000 0.0% - 30s Explored 0 nodes (82547 simplex iterations) in 30.15 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%